package com.guinetik.hexafun.examples;
   
   import com.guinetik.hexafun.examples.counter.CounterApp;
   import com.guinetik.hexafun.examples.sysmon.SysmonTUI;
   import com.guinetik.hexafun.examples.tasks.tui.TasksTUI;
   
   import java.io.BufferedReader;
   import java.io.InputStreamReader;
   
  import static com.guinetik.hexafun.examples.tui.Ansi.*;
  
  /**
   * Interactive launcher for HexaFun examples.
   *
   * <p>Run with: {@code mvn exec:java -pl hexafun-examples}</p>
   */
  public class ExamplesLauncher {
  
      private static final String LOGO = """
  
                ╦ ╦┌─┐─┐ ┬┌─┐╔═╗┬ ┬┌┐┌
                ╠═╣├┤ ┌┴┬┘├─┤╠╣ │ ││││
                ╩ ╩└─┘┴ └─┴ ┴╚  └─┘┘└┘
              """;
  
      private static final String MENU = """
  
                %s Examples %s
  
                %s1%s  Counter    Simple increment/add with validation
                %s2%s  Tasks      Kanban board TUI (TODO → DOING → DONE)
                %s3%s  Sysmon     System monitor with multiple output formats
  
                %sq%s  Quit
  
              """.formatted(
              color("─────", DIM), color("─────", DIM),
              color("[", DIM) + color("1", CYAN) + color("]", DIM), "",
              color("[", DIM) + color("2", CYAN) + color("]", DIM), "",
              color("[", DIM) + color("3", CYAN) + color("]", DIM), "",
              color("[", DIM) + color("q", YELLOW) + color("]", DIM), ""
      );
  
      public static void main(String[] args) {
          // If an argument is passed, launch that example directly
          if (args.length > 0) {
              launchByName(args[0]);
              return;
          }
  
          // Interactive menu
          var reader = new BufferedReader(new InputStreamReader(System.in));
  
          while (true) {
              System.out.print(CLEAR_SCREEN + CURSOR_HOME);
              System.out.println(color(LOGO, CYAN));
              System.out.println(MENU);
              System.out.print(color("  Select example: ", BOLD));
  
              try {
                  String input = reader.readLine();
                  if (input == null || input.equalsIgnoreCase("q")) {
                      System.out.println(color("\n  Goodbye!\n", DIM));
                      break;
                  }
  
                  switch (input.trim()) {
                      case "1", "counter" -> {
                          System.out.println(color("\n  Launching Counter...\n", GREEN));
                          CounterApp.main(new String[]{});
                          pause(reader);
                      }
                      case "2", "tasks" -> {
                          System.out.println(color("\n  Launching Tasks TUI...\n", GREEN));
                          TasksTUI.main(new String[]{});
                      }
                      case "3", "sysmon" -> {
                          System.out.println(color("\n  Launching System Monitor...\n", GREEN));
                          new SysmonTUI().run();
                      }
                      default -> {
                          System.out.println(color("\n  Unknown option: " + input, RED));
                          pause(reader);
                      }
                  }
              } catch (Exception e) {
                  System.out.println(color("\n  Error: " + e.getMessage(), RED));
              }
          }
      }
  
      private static void launchByName(String name) {
          switch (name.toLowerCase()) {
              case "counter", "1" -> CounterApp.main(new String[]{});
              case "tasks", "2" -> TasksTUI.main(new String[]{});
              case "sysmon", "3" -> new SysmonTUI().run();
              default -> {
                  System.out.println("Unknown example: " + name);
                  System.out.println("Available: counter, tasks, sysmon");
             }
         }
     }
 
     private static void pause(BufferedReader reader) {
         System.out.print(color("\n  Press Enter to continue...", DIM));
         try {
             reader.readLine();
         } catch (Exception ignored) {}
     }
 }